#include <iostream>
#include <gtest/gtest.h>
#include "hw/common.h"
#include "hw/display.h"

using namespace std;

/*
 * main class
 */

#define LOWBATTERY "LowBattery"

struct display_device *display_dev;

class DISPLAYHalTest : public testing::Test
{
	public:
		virtual void SetUp()
		{
			struct hw_info *info;
			int ret;
			ret = hw_get_info(DISPLAY_HARDWARE_DEVICE_ID,
					(const struct hw_info **)&info);

			if (ret < 0) {
				cout << "Fail to load cpu hal(" << ret << ")" << endl;
				assert(true);
				return;
			}
			if (!info->open) {
				cout << "Failed to open cpu device; open(NULL)" << endl;
				assert(true);
				return;
			}

			ret = info->open(info, NULL, (struct hw_common**)&display_dev);
			if (ret < 0 || !display_dev) {
				cout << "Failed to get cpu device structure (" << ret << ")" << endl;
				assert(true);
				return;
			}

			return;
		}

		virtual void TearDown()
		{
			struct hw_info *info;

			info = display_dev->common.info;
			if (!info)
				free(display_dev);
			else
				info->close((struct hw_common *)display_dev);
			display_dev = NULL;

			return;
		}
};

/*
 * testcase
 */
TEST_F(DISPLAYHalTest, InitP)
{
	EXPECT_NE(display_dev, nullptr);
}

TEST_F(DISPLAYHalTest, DeinitP)
{
	struct display_device *tmp;
	struct hw_info *info;
	int ret;

	hw_get_info(DISPLAY_HARDWARE_DEVICE_ID,
			(const struct hw_info **)&info);

	EXPECT_NE(info, nullptr);
	if (!info->open || !info->close)
		return;
	info->open(info, NULL, (struct hw_common**)&tmp);

	ret = info->close((struct hw_common *)tmp);
	EXPECT_EQ(ret, 0);
}

TEST_F(DISPLAYHalTest, GetMaxBrightnessP)
{
	int ret;
	int max;

	EXPECT_NE(display_dev, nullptr);
	if (!display_dev->get_max_brightness)
		return;
	ret = display_dev->get_max_brightness(&max);
	EXPECT_EQ(ret, 0);
}

TEST_F(DISPLAYHalTest, GetBrightnessP)
{
	int ret;
	int brt;

	EXPECT_NE(display_dev, nullptr);
	if (!display_dev->get_brightness)
		return;
	ret = display_dev->get_brightness(&brt);
	EXPECT_EQ(ret, 0);
}

TEST_F(DISPLAYHalTest, SetBrightnessP)
{
	int ret;
	int max;

	EXPECT_NE(display_dev, nullptr);
	if (!display_dev->set_brightness)
		return;
	ret = display_dev->get_max_brightness(&max);
	ret = display_dev->set_brightness(max);
	EXPECT_EQ(ret, 0);
}

TEST_F(DISPLAYHalTest, GetAutoBrightnessP)
{
	int ret;
	int brt;
	float lmax = 0, lmin = 0, light = 0;

	EXPECT_NE(display_dev, nullptr);
	if (!display_dev->get_auto_brightness)
		return;
	ret = display_dev->get_auto_brightness(lmax, lmin, light, &brt);
	EXPECT_GE(ret, 0);
}

TEST_F(DISPLAYHalTest, GetStateP)
{
	int ret;
	enum display_state state;

	EXPECT_NE(display_dev, nullptr);
	if (!display_dev->get_state)
		return;
	ret = display_dev->get_state(&state);
	EXPECT_GE(ret, 0);
}

TEST_F(DISPLAYHalTest, SetStateP)
{
	int ret;

	EXPECT_NE(display_dev, nullptr);
	if (!display_dev->set_state)
		return;
	ret = display_dev->set_state(DISPLAY_ON);
	EXPECT_GE(ret, 0);
}

TEST_F(DISPLAYHalTest, GetMaxFrameRateP)
{
	int ret;
	int max;

	EXPECT_NE(display_dev, nullptr);
	if (!display_dev->get_max_frame_rate)
		return;
	ret = display_dev->get_max_frame_rate(&max);
	EXPECT_GE(ret, 0);
}

TEST_F(DISPLAYHalTest, GetMinFrameRateP)
{
	int ret;
	int min;

	EXPECT_NE(display_dev, nullptr);
	if (!display_dev->get_min_frame_rate)
		return;
	ret = display_dev->get_min_frame_rate(&min);
	EXPECT_GE(ret, 0);
}

TEST_F(DISPLAYHalTest, SetFrameRateP)
{
	int ret;
	int max;

	EXPECT_NE(display_dev, nullptr);
	if (!display_dev->set_frame_rate)
		return;
	ret = display_dev->get_max_frame_rate(&max);
	ret = display_dev->set_frame_rate(max);
	EXPECT_GE(ret, 0);
}

int main(int argc, char **argv)
{
	testing::InitGoogleTest(&argc, argv);

	return RUN_ALL_TESTS();
}